A boy and his …electronic dog - MBP Sparkplug rev1

[jessenator]

Working through my backlog of boards, I remembered I received this PiF from blearyeyes this last holiday, so I set to work. Sparkplug. Well, given my fixation with Fallout, the first thing that came to mind was actually Sparks from Fallout 4's Automotron DLC, but then I decided to play to type and pick an eyebot from New Vegas

ED-E

 

A pre-war relic, sent from the east, detouring in Chicago before finally making its way towards Navarro: the last bastion (fight me) of the Enclave. ED-E took a .308 round cruising down through the Mojave, before being picked up by passing courier who picked it up and dropped it off at the Mojave Express office in Primm. In the hands of another, it would be repaired to working order and accompany the fated "Courier Six" on their journeys. Companion, pack mule, defender, eDog, it was the only one who never complained about the questionable actions carried out by the courier, with them until the end.





This one was comparatively spur-of-the-moment, which thankfully came out 99% as intended. I suspect one of monojack holes was milled slightly larger than the other, hence the asymmetrical protrusions. I think it just slipped over the annular ring on the input jack.

I toyed with a few enclosure color options, but when looking at Tayda's "cream", I converted the approximate Pantone to HEX and that sealed the deal: #EDE9AD I kid you not.

Thanks for looking.

[djaaz]

Really cool. Each time.

[jessenator]

Really cool. Each time.

Thanks! I'm pretty pleased with it.



I guess I didn't really comment on the circuit itself, reading it again, heh.

I do like the overdrive quite a bit. I know it's an oldie, but I do appreciate moving the bass and mid controls to trimmers in the rev. 1. I went with the intended IRF transistors, since blearyeyes kindly included them, and first time figured why not keep it vanilla. Sounds great and I might build something like it again.

[jessenator]

So after playing it quite a bit over the month it turns out I really love this circuit and wanted to make another one, so I made a new PCB layout for it.




I ended up using PPCB's 6-pot layout in the 1590N1 (125B) enclosure size, with my own LED placement preference.



I actually tinkered with it on the breadboard and liked having the mids control back on top, but left the bass as a trimmer. I wanted the ability to use both the IRF510 and different (DGS) MOSFETs in the circuit without having to bend leads, so I just made a new footprint.



Anyone who wants, can have one. The board layout is mine, but the circuit design belongs to Bean. SO, for the board at cost and shipping it can be yours ON THE CONDITION that you make a donation to Brian and/or buy some of the new projects from him.

PM me if you're interested. I have 3 of the prototype PCBs left, and if there's interest I will order some more.